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US 4,064,853 AGranted
Internal combustion engine with a pressure-compensating arrangement in the crankcase of the engine
AssigneeMotorenfabrik Hatz GmbH & Co. KG
InventorErnst Hatz
Life of this patent
Estimating the term…
Abstract
An internal combustion engine having an arrangement for compensating for the pressure in the crankcase of the engine. The arrangement includes a control valve which is arranged so that it is exposed on the one hand to the pressure in the crankcase and on the other hand to the pressure prevailing in an operating chamber which is separate from the connection conduit between the crankcase and the suction pipe and communicates with the atmosphere through an auxiliary conduit.
Claims6
An arrangement for compensating the pressure in a crankcase of an internal combustion engine, comprising:
- conduit means for providing a fluid connection between said crankcase and a suction pipe for said engine, said conduit means including an operating chamber separate from said fluid connection and auxiliary conduit means for connecting said operating chamber to atmospheric pressure, said operating chamber being directly formed in said fluid connection;
- bypass passageway means for providing passage of a fluid from said crankcase to said suction pipe around said operating chamber, said bypass passageway means comprising tubular jacket means enclosing and being spaced from said fluid connection along the length of said operating chamber;
- and
- a shut-off member mounted in said operating chamber and adapted to make or interrupt the connection between said crankcase and said suction pipe through said fluid connection and said bypass passageway means.
1 more element
Dependencies are inferred from the claim text.